Jesus was probably a real person, or at least based on one. Whether he raised the dead and turned water into wine is another matter.

(Prepares for downvotes)

Look at this from one perspective, as in they're insulting Jesus by saying only little kids believed him, it's Cringeworthy.

Look at this from the point as a single adult saying, that, as a fact, he no longer believes in Christianity or anything related to it, it's fine.

Either way, this information should not be shared. Religious beliefs are personal.